DOC: added nice figs for website
DOC: added nice figs for website

Former-commit-id: 270837caa5426b5b66d234d4e41c22dd4b8e0c8c [formerly dcc52ed79f8da0b4ef095e0d48c4dcbcf7fbed32]
Former-commit-id: defd2c3c5e987aca4b0f61446405d5597df0e399
Former-commit-id: 53406b04d76c825ac02b1e1b177baecd06390c7c
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox